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I'm having this annoying problem: a big ad (named "Recommended for you") that appears on random sites (even here) and remains opened in every tab of all my browsers (Opera, IE).

My OS is Windows 7 Home Premium x64 and i'm using Opera 11.62, IE 9, and did a full scan with MSE. Seems not happening in Firefox. Reinstalling Opera didn't fix the problem.

I can't find how to remove it. I don't even know the name of this. I'll post an image and thanks for helping.

UPDATE: i've changed the image with one from this site. A full scan with Spybot Search & Destroy, Malwayrebte and MSE found nothing.

UPDATE2: found what's the ad is, http://www.bleepingcomputer.com/forums/topic449943.html but my hosts file is clean.

enter image description here

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You want advice with virus removal, and you didn't even list your OS? –  Ben Voigt May 3 '12 at 19:32
    
He says "...(Opera, IE)" and that gives it away. –  ultrasawblade May 3 '12 at 19:33
    
@ultrasawblade: Not really. And version is important also. –  Ben Voigt May 3 '12 at 19:37
    
@BenVoigt specifications added, thanks for helping. –  user34295 May 3 '12 at 19:40
    
@Gremo: Just to double-check, you're using Opera's own rendering engine, and not "IE Tab" or [similar]? –  Ben Voigt May 3 '12 at 19:42
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3 Answers

1) Run windows update, get all the updates you can. If you aren't getting updates you have a bigger problem on your hand.

2) Download Spybot Search & Destroy, Malwayrebtes and Microsoft Security Essentials. Update all of them, and get them to scan your system and clean out everything they find.

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Thanks for helping. My system is up to date, last updates are dated 24 apr 2012. I'll go for Spybot. –  user34295 May 3 '12 at 19:43
    
@Gremo I recommend trying all of them, they do similar but different things, and all are free. –  BloodyIron May 3 '12 at 20:02
    
Unfortunately Spybot didn't find anything. I'm running a full scan with Malwayrebtes right now. –  user34295 May 3 '12 at 21:04
    
In IE9 enable activex filtering (so that it's on) - do the ads go away? Go to the proxy settings on your browsers - is something filled in there? (If there is and that's not normal, get rid of it) This almost sounds like that DNS thing people were talking about recently. –  Mark Allen May 3 '12 at 21:42
    
Also Malwayrebtes dind't find anything. I'm stuck now. No proxy setted and DNS are auto. –  user34295 May 3 '12 at 21:48
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up vote 3 down vote accepted

I found the problem. It was the hosts file hijacked. I started the system using a bootable media (MSDaRT 6.5) and removed the unwanted entries from that file:

68.168.222.226 www.google-analytics.com
68.168.222.226 ad-emea.doubleclick.net
68.168.222.226 www.statcounter.com
108.163.215.51 www.google-analytics.com
108.163.215.51 ad-emea.doubleclick.net
108.163.215.51 www.statcounter.com
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Firefox has a plugin called AdBlock Plus that works very well.

Install Firefox. Choose menu > Addons. Search and install AdBlock Plus.

Then you'll be able to download lists of adservers to block, or manually block ads by: Right click on the image. Choose AdBlock: Block image... --or-- Mouse over a flash object and click on the block tab that appears.

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Why i'm supposed to be force to user Firefox? I'm using Opera and i like it. Plus i'm already using urfilter.ini (that's Opera adblock). –  user34295 May 4 '12 at 7:05
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protected by slhck May 25 '12 at 8:53

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